Customers Reviews

Rated 5 out of 5 by Joe33 Works Good
Works great in my tank. Paired with the carbon pad
May 26, 2016

Rated 5 out of 5 by Afamily Good item
Cut today size. Perfect for canister filters. Ease of use.
January 9, 2016

Rated 5 out of 5 by Raymondb Great product
I am glad to have it thanks working greatest products
January 8, 2016

Rated 5 out of 5 by PJARZ Great Product
Put these in my filters and in less than 5 days the ammonia levels went from dangerous to perfect. This was in addition to adding some ammonia reducing chemicals but the last time I only used chemicals, it took several weeks. These really sped up the process..
July 20, 2015

Questions & Answers

Drs Foster and Smith Articles

Mechanical filtration can greatly improve the health of most aquariums, and is also important for the efficiency of your biological filtration. The process is simple: mechanical media strains solid debris.

Biological filtration is the action of bacteria breaking down dangerous ammonia, converting it to nitrite, and then converting nitrite to less toxic nitrate. This article discusses how the process works.

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